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JPL Small-Body Database Browser
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19691 Iwate (1999 RN214)
Classification: Main-belt Asteroid          SPK-ID: 2019691
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05993365757259508 3.3975e-08  
a 2.742238221766819 1.2505e-08 au
q 2.577885855200964 9.5152e-08 au
i 5.518231293798491 3.936e-06 deg
node 162.5603495856145 3.6e-05 deg
peri 247.2234101220535 4.6988e-05 deg
M 163.8397872408077 3.0753e-05 deg
tp 2458245.628426719810
(2018-May-07.12842672)
0.00014067 TDB
period 1658.655513153539
4.54
1.1346e-05
3.106e-08
d
yr
n .2170432601255131 1.4847e-09 deg/d
Q 2.906590588332674 1.3255e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1949  
   data-arc span      14065 days (38.51 yr)  
   first obs. used      1981-10-24  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49765  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:04:06  

Additional Information
 Earth MOID = 1.59354 au 
 Jupiter MOID = 2.31455 au 
 T_jup = 3.340 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3   n/a MPO337424  
diameter diameter 12.596 km 0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19691 Iwate           Discovered 1999 Sept. 5 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Iwate, the second largest prefecture in Japan, is located in north Honshu. Its coast was heavily damaged during the March 2011 tsunami. Iwate has one of the oldest astronomical institutions in Japan (Mizusawa Observatory), which was established for Earth rotation measurements.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

Alternate Designations
 1999 RN214 = 1981 UP17 = 1988 GC1 = 1990 TM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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